We had a new hard drive installed on a laptop and now it is impossible to type a sentence because the cursor keeps jumping backwards and retyping over and in the middle of what has been already typed. It is about to drive me crazy! Help?
Was a new copy of Windows installed on the new hard drive?
If so. The mouse pad driver may not have been installed. I suggest you go to the manufacturer's support web site and download the driver.
Do you have an option in the "Control Panel" to adjust sensitivity of the mouse pad? It's possible that the pad is sensing your hands while your typing. It may also be possible to disable the mouse pad and use an external mouse.